|Goal|Date|Venue|Opponent|Score|Result|Competition|
|---|---|---|---|---|---|---|
|1.|24 January 2007|Estadio Cuscatlán, San Salvador, El Salvador|Denmark|1–0|1–0|Friendly|
|2.|8 February 2007|Estadio Cuscatlán, San Salvador, El Salvador|Belize|2–0|2–1|2007 UNCAF Nations Cup|
|3.|10 February 2007|Estadio Cuscatlán, San Salvador, El Salvador|Nicaragua|1–0|2–1|2007 UNCAF Nations Cup|
|4.|10 February 2007|Estadio Cuscatlán, San Salvador, El Salvador|Nicaragua|2–1|2–1|2007 UNCAF Nations Cup|
|5.|8 September 2007|Estadio Olímpico Atahualpa, Quito, Ecuador|Ecuador|1–2|1–5|Friendly|
|6.|13 October 2007|Estadio Cuscatlán, San Salvador, El Salvador|Costa Rica|1–2|2–2|Friendly|
|7.|6 February 2008|Estadio Cuscatlán, San Salvador, El Salvador|Anguilla|9–0|12–0|2010 FIFA World Cup qualification|
|8.|22 June 2008|Estadio Cuscatlán, San Salvador, El Salvador|Panama|1–1|3–1|2010 FIFA World Cup qualification|
|9.|22 June 2008|Estadio Cuscatlán, San Salvador, El Salvador|Panama|2–1|3–1|2010 FIFA World Cup qualification|
|10.|15 October 2008|Estadio Cuscatlán, San Salvador, El Salvador|Suriname|2–0|3–0|2010 FIFA World Cup qualification|
|11.|22 October 2008|Robert F. Kennedy Stadium, Washington, D.C., United States|Bolivia|1–0|2–0|Friendly|
|12.|28 March 2009|Estadio Cuscatlán, San Salvador, El Salvador|United States|1–0|2–2|2010 FIFA World Cup qualification|
|13.|6 June 2009|Estadio Cuscatlán, San Salvador, El Salvador|Mexico|2–1|2–1|2010 FIFA World Cup qualification|
|14.|3 March 2010|Los Angeles Coliseum, Los Angeles, United States|Guatemala|2–1|2–1|Friendly|
|15.|12 June 2011|Soldier Field, Chicago, United States|Cuba|6–1|6–1|2011 CONCACAF Gold Cup|

Question: how many competitions had a score of 1-0 at most?
Answer: 4